Paper reeling method and apparatus



w. R. THOMSON 2,528,713

PAPER REELING mmon AND APPARATUS 2 Sheets-Sheet 1 Inventor WRT/Iomsonah, M

'ittomwg Nov. 7, 1950 Filed Doc. 21, 1946 Nov. 7, 1950 w. R. THOMSON2,528,713

PAPER Rmmc ua'mon mo APPARATUS r1104 Dec. 21, 1946 I 2 Sheets-Sheet 2inventor Patented Nov. 7, 1950 PAPER REELING METHOD AND APPARATUSWilliam Robert Thomson, Ottawa, Ontario,

Canad Application December 21, 1946, Serial No. 717,789 In CanadaJanuary 31, 1946 Claims.

This invention relates to paper winding methods and devices such as maybe employed in association with paper making machines.

Many types of paper winding or reeling machines have heretofore beenproposed and employed in the art, but such machines usually require moreor less expert attention on the part of the operator and are subject tothe production of a substantial amount of paper "broke due to breakagesof the paper web during the reeling operation or while transferring theweb from one reel bar to another.

It is an object of this invention to provide a simplified and improvedmethod and apparatus for carrying out the operation of winding paper onreel bars in a morecxpeditious and convenient manner and withsubstantial elimination of broke.

The invention contemplates the provision, in combination with the usualreel drum and bear ings therefor, of reel bar carrying and transferringmechanism and means for supporting a reel bar in paper reeling relationto the drum, the said mechanism being adapted in one position to receiveand support a reel bar out of contact with the drum, and being movablein one direction to place the supported reel bar into contact with apaper web on the drum and further movable in the same direction towardsthe reel bar supporting means, while operable during such furthermovement to maintain contact between the reel bar and a paper web on thedrum.

To this end, the invention includes, in combination with the usual reeldrum and bearings therefor, reel bar transferring mechanism ec,centrically mounted on the reel drum bearings and having reel barsupporting pockets, and means for revolving the transferring mechanismabout the axis of the drum throughout a predetermined distance, thedistance between the axis of the pockets and the surface of the drumbeing at one point substantially equal to' the 1 radius of a reel barsupported in the pockets ing the paper reeling operation, and inclinedsupports to slidably receive the reel bar bearings, such supports beingadjustable as to inclination to vary the nip pressure between the paperroll and the reel drum.

Other objects, details and advantages of the invention will becomeapparent from the ensuing description with reference to the accompanyingdrawing, in which Figure l is an end elevation of the paper windingdevice in accordance with the invention,

Figure 2 is a detail side elevation in section of the eccentricsupporting structure,

Figure 3 is a detail sectional end elevation of the eccentric supportingstructure,

Figure 4 is an elevation of one side of the paper winding device, and

Figure 5 is an elevation of the other side of the winding device.

In the drawing, I is a main supporting frame in which is mounted a reeldrum 2 having journals 2' mounted in suitable bearings 3. The reel drumis driven in any suitable manner through the drive coupling 4. The paperweb 6 is fed onto the drum as indicated and the usual spreader bar I,which bears on the web to avoidwrinkling of the paper, with adjustingmeans 8 therefor, may be provided.

A stationary eccentric sleeve 9 is secured to each bearing 3 in spacedrelation to the respective journal 2' and rotatably mounted thereon isan arm ID, a bushing H being preferably provided as a bearing surfacebetween the arm and sleeve. The free end of each arm I0 is provided witha pocket l2 to receive the end [3 of a reel bar Hi. In the uprightposition of the arms ID, as shown in full lines in Figure l, the reelbar l4 supported therein is adapted to be substantially in contact withthe drum 2 or spaced therefrom only a distance approximately equal tothe thickness of the paper sheet. The eccentricity of the sleeves 9 issuch that rotative movement of the arms in one direction from theupright position, as to the left in Figure 1, gradually decreases thedistance between the axis of the pockets and the surface of the drumwhereby the reel bar therein remains in contact with the drum and movesoutwardly to a slight extent, and rotative movement of the arms in theopposite direction from the upright position, as to the right in Figure1, gradually increases the distance between the axis of the pockets andthe surface of the drum whereby the reel bar therein moves out ofcontact with the drum. The rotative movement in the first direction ispreferably through an arc of from 40 to while the rotative movement inthe second direction may be of considerably less degree as through anarc of from 20 to 35.

Means for swinging the arms I0 throughout the desired rotative movementcomprises a shaft 15 suitably journalled in the frame, gears l6 thereon,a'gear segment II fixed to each arm, and intermediate gears l8. 'Ahandwheel I9 is provided for driving the shaft I5. A brake 23 forholding the arms in any position to-which they are moved isalsoprovided. While various types of brakes will be found to besatisfactory'for the purpose. that illustrated is particularly effectiveand com prises a brake drum 2|, and a pair of shoes 22 engageable withthe drum and having their upper ends pivotally connected together at 23and their lower ends pivotally connected to a law tongs arrangement oflevers 24. A rod 25 for actuating the tongs is slidably mounted in abracket"; A spring 21 normally urges the rod in a downward direction toapply the brake, anda pedal 28 is pivotally connected tothe rod 25 andis adapted to move the same upwardly to release the brake.

Means for supporting the reel bar during the paper winding operationcomprises a pair of arms 23 positioned adjacent either end of the frameand rotatably mounted on the eccentric sleeve 9. Each arm is providedwith an inclined extension constituting a rail 30 which slidably carriesa reel bar supporting bearing 3|. It will be observed that the arms andrails are free to swing about their pivotal mounting on the sleeve 9 andmeans for supporting them in adjustable position with relation theretocomprises a pair of vertically disposed rods 32 having their upper endspivotally' engaging a shaft 33, and a pair of links 34, each having itslower end pivotally mounted on the shaft and its upper end pivotallymounted on a rail. Power means, such as hydraulic motors, are providedto impart vertical movement as desired to the rod 32. Level indicatingmeans, such as spirit levels 43, may be provided on the shaft 33 inorder that any variation in the desired synchronous movement of the rods32 may. be noted and corrected.

A plurality of air nozzles 36, supplied with air under pressure from anysuitable source, are located below the nip between the paper roll 35 andreel drum and are adapted to direct air jets substantially tangentiallyof the roll and drum. A

second series of air'nozzles 31 are located to the' right of the nipbetween the drum and the reel bar as supported by the arms ill in theupright position thereof and "are adapted to direct air jetstangentially of the drum and reel bar.

The usual doctoring device 38 for keeping the reel drum surface clean isprovided.

In operation, the reel bar transferring step will be described, assumingthe machine to be in the operating order shown in Figure 1 with asubstantially full roll of paper on one reel bar and a second reel barsupported in pockets l2 in vertical axial alignment with the reel drumand driven thereby. The paper roll is withdrawn slightly from the drumface by the hoisting or other suitable mechanism and the nozzles 36 areopened to direct air jets against the web and produce a paper loop asindicated at 39. The nozzles 36 are then closed, which permits the loopto fall into the position indicated at 40 which is to the right of thenip between the second reel bar and the drum. The nozzles 31 are thenopened to direct air jets against the loop 40 which causes it to beengaged by the nip. As the loop becomes wound upon the second reel bar,the portion of the loop between the bar and the full roll breaks and theweb continues to wind upon the second reel bar. The full roll is thenremoved bymeans of the hoisting mechanism andthe sliding bearings 3| 4return to their lowermost position. Releasing the brake by actuation ofthe pedal 28, the operator revolves thehandwheel I9 to swing the armsIII with the second reel bar to the left a sum: cient distance todeposit the reel bar in the bearings 3|. During such movement, the reelbar remains in paper reeling relation to the drum but is free to mountout of the pockets l2. After position, another reel bar is placed in thepockets I2, and it will be observed that the bar, as indicated at 4|,is-free from engagement with the drum or web. The arms may then be swungback to upright position wherein the reel bar is driven by the drum,preparatory to subsequent positioning on the bearings 3| in the mannerdescribed.

The nip pressure between the paper roll and the reel drum may be variedas desired by ad justing the inclination of the rails 30. This is highlydesirable since, for satisfactory operation, the nip pressure should beadjusted for varying weights of paper. For instance, when reeling alightweight paper, the nip pressure must be relatively low to avoidbreakage of the web.

Furthermore, it will be observed that, for any fixed position of theroll supporting rails 30, the nip pressure will increase with increasedsize and weight of the roll 35. However, with the structure described,it is possible to maintain'substantially constant any desired nippressure by lowering the rails 30 either periodically or continuously,by actuation of the power means 42, at a rate synchronized with therateof increase of the size of the roll 35 as the web is wound thereon.

It will be observed that the apparatus described is subject to simpleand convenient operating steps requiring little skill on the part of theoperator. Moreover, the transfer of the web from one reel to another isoccomplished with no wastage of paper and, with the proper adjustment ofnip pressures, breakages during reeling are substantially eliminated.

Furthermore, mechanism may be readily provided for automaticallycarrying out the simple operating steps required.

It will be understood that various-changes in details and arrangement ofparts may be made without departing from thespirit and scope of theinvention as defined in the appended claims. For instance, the rails 29may be of curved, instead of flat contour, as illustrated. Further,whilethe arms Ill are'shown and described as being in upright positionat the initial nip engagethan upright with corresponding arrangement ofthe other parts of the machine.

Whatis claimed is: e

1. In a paper reeling machine having a driven reel drum, journals forthe drum, and supporting bearings for the journals, a fixed sleevesurrounding each journal in spaced eccentric relation thereto, an armpivotally mounted on each sleeve and having a reel bar receiving pocket,and means for swinging the arms about the sleeves.

2. In a paper reeling machine having a frame and a driven reel drummounted therein, arms pivotally mounted in the frame for supporting areel bar in substantially contacting relation with a paper web on thedrum, the pivotal axis of said arms being laterally offset from thevertical axis of said drum, means for supporting a reel bar in I paperwinding relation to the drum comprising a pair of inclined rails, and abearing slidably mounted on each rail, and means for swinging said armsto transfer a reel bar therefromto said bearings.

3. In a paper reeling machine having a frame and a driven reel drummounted therein, arms pivotally mounted in the frame and having reel barreceiving pockets, means for revolving the arms a predetermined distancethrough an arc the center of which lies on an axis laterally off-- setfrom the vertical axis of the drum, the distance between the axis of thepockets and the surface of the drum being at one point substantiallyequal to the radius of a reel bar supported in the pockets and graduallydecreasing from such point to one end of said predetermined distance andgradually increasing from such point to the other end of saidpredetermined distance.

4. In a paper reeling machine having a frame and a driven reel drummounted therein, arms pivotally mounted in the frame and having reel barreceiving pockets, means for revolving the arms a predetermined distancethrough an arc the center of which lies on an axis laterally offset fromthe vertical axis of the drum, the axis of said pockets being in oneposition in substantially vertical alignment with the axis of the drum,and means for supporting a reel bar in paper winding relation to thedrum, said revolving means constituting means for transferring a reelbar from the pockets to the reel bar supporting means, the distancebetween the axis of the pockets and the surface of the drum being atsaid one position substantialy equal to the radius of a reel barsupported in .the pockets and gradually decreasing when moved from suchposition in a direction towards said reel bar supporting means.

5. In a paper reeling machine having a driven- 6 swinging the arms inunison about the sleeves, a second arm pivotally mounted on each sleeveand carrying a reel bar supporting rail, and means for swinging saidsecond arms in unison about the sleeves.

8. In a paper reeling machine having a frame and a driven reel drummounted therein, arms pivotally mounted in the frame for supporting areel bar in substantialLv contacting relation with a paper web on thedrum, the pivotal axis of said arms being laterally offset from thevertical axis of said drum, means for supporting a reel bar in paperwinding relation to the drum comprising a pair of inclined railspivotally mounted in the frame, the pivotal axis of said railscoinciding with the pivotal axis of said arms, and means for swingingsaid rails in unison about their pivots to vary the inclination thereof.

9. In a method of reeling paper on a reel bar utilizing a reel drum, thesuccessive steps which comprise placing the reel bar in adjacentsubstantially parallel but non-contacting relation to the drum, swingingthe reel bar in an arcuate direction to a position in substantiallycontacting tion to a position in substantiallycontacting relaets, andgradually decreasing when moved from 4 such position in one direction.-

6. A paper reeling machine as defined in claim 5, including means forrevolving said arms a predetermined distance about their pivots, andbrake relation to the drum, directing a web of paper between the reelbar and drum to initiate formation of a roll of paper on the reel bar,again swinging the reel bar in said arcuate direction immediately oninitial formation of the roll of paper thereon to another position whilecontinuoushr maintaining the roll of paper in contact with the drum, andsupporting the reel bar in the latter position while continuing theformation of the roll of paper thereon.

10. In a method of reeling paper on a reel bar utilizing a reel drum,the successive steps which comprise placing the reel bar in adjacentsubstantially parallel but non-contacting relation to the drum andoffset to one side of the axis of the drum, swinging the reel bar in anarcuate direcsain swinging the reel bar in said arcuate directionimmediately on initial formation of the roll, of paper thereon toanother position offset to the other side of the axis of the drum whilecontinuously maintaining the roll of paper in contact with the drum, andsupporting the reel bar in the latter position while continuing theformation of the roll of paper thereon.

WILLIAM ROBERT THOMSON.

assurances crrs'n The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 363,326 Goss May 17, 18871,117,114 Wagg Nov. 10, 1914 1,248,542 Pope Dec. 4, 191'! 1,353,634Crandall Sept. 21, 1920 4 1,484,498 Hildebrandt Feb. 19, 1924 2,196,000Richardson Apr. 2, 1940

